Arctic Assault does not have an area of affect while colliding with an enemy champion; however, if multiple champions are hit by the charge itself, you may deal damage to multiple enemies.

Flail of the Northern Winds

RANGE: 350

COST: 40 / 35 / 30 / 25 / 20 Mana

COOLDOWN: 11 / 10 / 9 / 8 / 7

Active: Sejuani's next basic attack deals bonus magic damage to the target and enemies near it equal to their maximum health. She then swings her flail, dealing magic damage each second to enemies within range for 4 seconds.

If this ability is reactivated, Sejuani immediately starts swinging her flail.

The Frost debuff itself is not a form of CC and hence cannot be cleansed by items or abilities that remove CC. Permafrost, however, is CC and can be removed.

Frost cannot be applied to any target affected by Permafrost until 3 seconds after the Permafrost debuff expires. Due to this, Permafrost is the only one of Sejuani's abilities that do not apply Frost.

Glacial Prison

RANGE: 1175

COST: 100 Mana

COOLDOWN: 130 / 115 / 100

Active: Sejuani throws her frost-forged bola in a line. If the bola hits an enemy champion, it shatters, stunning the target and nearby enemies for a short duration. If the bola reaches its maximum range, it shatters and slows enemies by 30% instead for the same duration. All enemies in the shatter area take magic damage.